12-letter words containing p, r, o, t, a
- extrapolated — Simple past tense and past participle of extrapolate.
- extrapolates — Third-person singular simple present indicative form of extrapolate.
- extropianism — Belief in, or support for, the theory of extropy.
- factor group — quotient group.
- factory ship — a whaling ship equipped to process killed whales and to transport the oil and by-products.
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- flow pattern — The flow pattern is the way in which fluids move through a reactor.
- fluorapatite — a crystalline mineral, Ca 5 (PO 4) 3 F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth.
- fore-topmast — the spar or section of a pole mast serving as the topmast of a foremast on a ship.
- fore-topsail — a topsail set on a foremast on a ship.
- foretopmasts — Plural form of foretopmast.
- foretopsails — Plural form of foretopsail.
- fort pulaski — Count Casimir [kaz-uh-meer] /ˈkæz əˌmɪər/ (Show IPA), 1748–79, Polish patriot; general in the American Revolutionary army.
- fortepianist — the player of a fortepiano
- fortified pa — a Māori hilltop dwelling with trenches and palisades for defensive occupation
- fortran-plus — Fortran for the DAP parallel machine, implements many Fortran 90 features.
- forward post — the position held by a soldier on the forward line
- fractography — the study of fractures or cracks in a material, esp metal, in order to predict or identify the cause of a failure in a structure
- fried potato — Fried potatoes are pieces of potato cooked in oil or fat.
- galactophore — a galactophorous duct.
- gametophores — Plural form of gametophore.
- gas-operated — (of a firearm) using some of the exhaust gases to operate the action.
- gastroplasty — any plastic surgery on the stomach.
- gastroscopes — Plural form of gastroscope.
- gastroscopic — Of or pertaining to gastroscopy.
- giant powder — dynamite composed of nitroglycerin and kieselguhr.
- gloria patri — the short hymn “Glory be to the Father, and to the Son, and to the Holy Ghost. As it was in the beginning, is now, and ever shall be, world without end. Amen.”.
- glyptography — the description or study of engraved gems or other stones.
- gold therapy — administration of gold salts as a treatment for disease, especially rheumatoid arthritis.
- gonadotropic — pertaining to substances formed in the anterior pituitary gland that affect the activity of the ovary or testis.
- gonadotropin — a gonadotropic substance.
- gopher state — Minnesota (used as a nickname).
- gramophonist — a person who uses a gramophone
- graph theory — the branch of mathematics dealing with linear graphs.
- graphologist — the study of handwriting, especially when regarded as an expression of the writer's character, personality, abilities, etc.
- grapple shot — a grapnellike projectile fired from a gun and used as a hold for the end of a line in rescue operations or in kedging.
- gravitropism — (biology, botany) a plant's ability to change its growth in response to gravity.
- ground plate — Electricity. a metal plate for making a ground connection to the earth.
- haemoprotein — Alternative spelling of hemoprotein.
- heartstopper — something so frightening or emotionally gripping as to make one's heart seem to stop beating: We didn't crash, but it was a heartstopper.
- heliotherapy — treatment of disease by means of sunlight.
- heptahedrons — Plural form of heptahedron.
- hernioplasty — an operation for the repair of a hernia.
- herpetofauna — the reptiles and amphibians that inhabit a given area
- heterography — spelling different from that in current use.
- heterophobia — Fear or resentment of what is different.
- heterophoria — a latent strabismus of one or both eyes.
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heteroplasty — the repair of lesions with tissue from another individual or species.
- heteropteran — A bug of the group Heteroptera.